Tropical Storm Bertha
T.S. Bertha formed earlier this morning, quickly making landfall in South Carolina. The latest North American Model (image below courtesy Tropical Tidbits) shows the heavy rainfall remaining well south and west of the DC Region as the storm moves into West Virginia and weakens.
Humidity will be noticeably higher on Thursday with scattered showers and thunderstorms likely during the afternoon. The good news is that coverage of showers and storms should remain scattered according to the latest high-resolution forecast models.
Scattered Severe Thunderstorms Possible Friday Afternoon and Evening
Scattered thunderstorms are likely on Friday afternoon as a cold front begins to approach from the Midwest. The threat of any widespread severe weather is currently expected to remain well west of the DC Region because the front is not forecast to cross our region until Saturday morning. We will have to see if future forecast model runs indicate a better chance of more widespread showers and thunderstorms late Friday night into the first half of Saturday (image below courtesy Tropical Tidbits).
Watch the Dry Canadian Air Mass Push the Nasty Humidity out of the Mid-Atlantic and into the South
Dew points will rise into the 70s on Thursday and Friday (image below courtesy Pivotal Weather) but will drop rapidly on Saturday afternoon and Sunday behind the next cold front. Dew points will plunge into the 30s and 40s during the upcoming weekend ushering in sunshine, northwesterly breezes, dry air and absolutely stellar conditions to get out and enjoy the weather.
Sunshine and Low Humidity to Continue Early Next Week
High pressure is forecast to remain firmly in control across the Midwest, New England and the northern Mid-Atlantic states through Tuesday of next week. Enjoy!